Double-acting pump.



W. N. WEINIVIAN.

DOUBLE ACTING PUMP.

APFUCAHON FILED DEC. 27.1915.

Patented Sept. 10, 1918.

-ms NoRms Firms co.. mmm-umu., wAsmlvamN. n. L.

' of Fig.I and,""

rot Fig.4 f1; i u t vlrepresents thefloyverfportionlof the drop Winnaarn. Wniinyi-LAN, or coLUiviBUs, oHIo.

DOUBLE-nomme PUMP.

tarea@ Columbus, inthe county olFr'anllin andv State of hiofhaye"inyented'f eertain new and` useful xlin'pr'c/)veinentsl in7Double-'Aoti'ng Bumps, of Whiohitlie' `iftill'owing is a speei'iijianton My inifention relates to the improvement ofdouble aot'ing puinps'ofthat iiihie'h are coniinonly oalled Ydeep Well yp'u'inp's and theQbjextsoif lni'y`inve ntioii are to provide an improvedVConstrnotion'fand arrangement part'swwhereby' an iinrestrioted 'floW iWater niay be attained; to so Jcoiistriiet niy in lprbyed puinp as 'toinsure a low cost of `n,ialntenance f a'nd'o "eravt'iiigto providefnn.-proyed spring 'actuated lyalye' edn'striictioiis which.Willfcoiitribiite to' smoothness' of operation. and obviat'e.'undesirable Vibration and shooksftliiis preventing parts .theineohanisin 'fioni'beoofning "loosened "or brokefg to so 'constructn'iyimproy'e'd pump la's'ft aeilitatetlieready 'reir'iova'l'-itnd sub'-stitiition oi:parts thereofand to' produce other `iinproyein'e'n ts,"lthe details of AWhich reference designate corrsspendng prrs; and

art-s ion upfstrlre 6 is a'transverse setion on l line {ti-,6 of Fig. 1,,Eig :7 is atransversefseetionYon line 7-7 of'Fgl 1 5 l C Fi" ."8 is atra 'inge isa @eine sleeve? (is Specilcyation of Letters Patent.

shown. The coupling* Patented. sept.. ie, isis;

.application leflpedein'ner 27, 1,915; Sera1No. 618,793.

connected with the upper port-ion of the barrel, 3. The upper portii'i'of this coupling ineinber 2 belowv the lower end'of the drop pipe'istapered lhoWn', and lWithinthis tapered portion is' secured the uppertapering' liead'portion of a'dplug' 4,' thek lower-portion ofthe bodyoflwh'ioh is reduced *fincircumference, said Tediieed portion' being`forinedf With radial lips' il?" Whiohf carry f on their'outer' "sides-aring 41?; the latter rhaving an outwa'rdly flanged upper portion, "asQopposite the reduced portionof the plugis formed With comparativelylarge opfeningsQa which Coininunicate With'tlie :s'pa'eefs'l between'the ring Vin'en'nber it and :the loWer` portion j'offthe plug 4,; 5represents a'tubul'a'r rodpr' tubu# lail sucker rod (extension,` whichextendsfrom a point' lin the lower portion 'of lthe jdrop pipe L1'downward into andV throughthe centrai portion "ofthebarrel 3'.' IThistubular rod 5"is Invable through al oent'ral opening of the plug, theheado' tlie` iatterjbe`ing"recesfs'ed about "itsoentral' opening"toi Vac- Commoda'te suitablepacking rings and v@up leathers 7 and'S.Thell'owerfsidebf the rearportion 4l of the plugt and the underside 'ofthe body of the plug'lornis aiseat which aise-surrounds the weer) mawhich ,bears inthelowerjeiidportion oflfa yalve cage 12,' thexseparated/fupwardly[extending lside ineinbers 1 3' of 'Whiehhave theirupper end portions 'screwed iinto engagenientyith the plug ring,l 4b,"Thespring l'lrno'rinally retains the valve top ringinits npperniostposition 'and said' Valve 'ist'hus adapted .to close communication"between the spaces l3suitable distance z belowlA the val'ye 10,` the"tubularrodharries a pistonfor plunger, of which le represents theuppersection'or fshellythe bodyiof :which surrounds the tube of' Whicl'i 'isromeu; with inwardly 'pi-djsening lugs 15 Whih Contact with theperiphery largedfa'nd eo'nn'e'o'tedby screw' threads With the lower endJportion of the-ftubiilarfro'd 5.

section or shell 16, with which it is detachably connected, through themedium of passages 14a. tion 14 is designed to fit movably withinthe'barrel 3, the upper portion thereof has its periphery cut away toform a space for the reception of cup leathers 17 and packing rings 18.VBelow the otherwise open lower end of the tubular rod is a yieldingVvalve ring 19 which is carried on the upper side of a valve 20 whichslidablyfits within the plunger section or valve casing 16. The

valve body 20 is formed with a central open-l ing in its upper side asindicated at 21 and the underside of said valve body is recessed orhollowed as indicated at 22. Depending from the valve body and formedtherewith are vertical ribs 23, the latter beingl connected with theperiphery of a spring container member 24 which is of inverted cup formand which surrounds an internal Vspring container member 25 'which'rises from a valve 26, the latter carrying on its underside a yieldingvalve disk l27.V This valve disk seatsupon an internal shoulder v28lof'thesectionor casing 16. Below' this the valve seat, the section 16is reduced to permit o fV the application of packing rings 29 and cupleathers 30 between said reduced portion and the barrel.

Y The lower end of the barrel 3 is tapered, as shown, and into this`tapered lower end fits a plug 31 which is formed with a tapered lower.portion and the underside seat of which ishollowed orrecessed. The plug`31 ,is formed withv a central vertical opening and about the latter withopenings `32. The upper portion ofthe plug has a threaded connectionwith the lower end of` a cage 33 which is formed with a dome-shapedy top34. Into the central portion of the dome bottom 34` screws the upperportion of a vertical valve rod 35. On the upper portion of this .valverod is carried asleeve or enlargement 36 which is surrounded by a coilspring 37, the latter bearing between the dome bottom Vand the upperside of a valve 38 which is mounted on therodl 35. lIn the deine bottom342L are formed openings39 and the wall 50l ofthe dome has formedtherein elongated openingsor slots ,40 which forma communication betweenthe interior of the'dome and the barrel 3. `The springY 37 vrnormallypressesthe valve 38 downward overl the, upperends of theopenings orpassages 32 'of ,pugetv I As stated, theposition of the parts on the.

up-stroke of the piston is illustratedv in Fig.

l ofthe drawing, and assumingV that the pisvton is moving upward, vitwill be understood that the suction caused by the movement of Ythepiston will result in raising the valve 38 and pumping water from thewell through the passages 32 about the valve 38, thence through the domeslots 40 into the barrel While the body of the sec- .mannen lowersections,

above said dome. In this upward movement, it is obvious that the waterwhich has previously been drawn into the barrel above the plunger member14, will be forced downward through the openings 14a operating to openthe valve 2O and to close the valve 26. The water thus pumped throughthe passages 14a following the direction of the arrows shown, rises inthe tubular rod 5 from lwhich it is ,conducted into the drop pipe 1 fromwhich latter it flows through a suitable discharge outlet. During thisVoperation, it is obvious that the spring pressed valve 10 will be seatedin its uppermost position, thus cutting off the passage of water throughthe openings 4a. However, on the down stroke of the plunger, this valve10, as indicated in F ig. 2 of the drawing, will by downward suction beopened and water from the well be permittedto enter through the openings2a and passages 2b and thence about the valve'lO and into the barrelbelow said valve. .The downward movement ofthe plunger also resultsthrough pressure of the water in the lower portion of the' barrel belowthe plunger, in closing the valve 38,y opening the valve 26andl closingthe ring valve 20, thus causing the water which was contained inthelower portion of the cylinder to vpass upward about the valve 26 throughthe central opening ofthe valve 20 and thence through the pipey orvtubular rod 3. It will be understoodthat the recipcushion thevalves'against undesirable shock and contribute to the ease of operationof 1 Vthe parts. It will also Vb'eobserved vthat my lmproved pumpconstruction is such-as to admit .of the various elements thereofbeing'.

readily disconnected one from the other inV case ofthe necessity ofyrepair or of.'substi tuting lnew parts;

Whatv I claim, is :y

1. Ina double acting pump, a barrel,

plunger slidablyvmounted within said bar-Y rel, said plunger comprisingupper and a hollow plunger operating rod having the lower extremitythereof situated within and secured to saidl upper sec-V tion, saidlowers'ectionlbeing internallyjenlarged to provide a valve'receivingchamber, ribs internally formed with said upper the valve chamberthereof, said lower section being formed with a port for establishingcommunication between the portion of a barrel below said plunger andsaid valve chamber, and a plurality of vertically opposed and alinedvalves having an eXpansive spring situated there-between and normallytending to obstruct the iiow of fluid through the ports formed in saidsections.

2. fn a reciprocatory plunger for well pumps comprising a plurality ofupper and lower ported sections forming therein a valve chamber, a valvestructure situated within said chamber, said structure comprising anupper valve body having a seating washer disposed on its upper surfaceand its under surface formed to provide a webbed spring engagingportion, a lower valve body formed to include a seating washer and anopposed spring engaging surface, an eXpansive spring situated betweensaid valve bodies and tending to force the washers thereof into seatingengagement with ports formed in said plunger, a telescopic means carriedby said valve bodies for giving their relative movements and to maintainthe same in vertical alinement.

In testimony whereof I afix my signature in presence of two witnesses.

WLLIAM N. WEINMAN.

Witnesses:

WALTER E. L. Boon, A. L. PHELrs.

Copies of this patent may be obtained for ve cents each, by addressingthe Commissioner of Patents. .,"vVasLington, D. C.

